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Fig. 6B. —32-year-old man with severe acute respiratory syndrome coronavirus pneumonia who is also hepatitis B carrier. He presented with fever and myalgia. Chest radiograph with apparently normal findings was obtained on admission (day 5 from onset of symptoms). Follow-up high-resolution CT scans obtained on day 21 show extensive ground-glass opacities and consolidations in both lungs. Air-space consolidations with air bronchograms (solid arrow) are seen predominantly in posterior location in lower lungs and areas of ground-glass attenuation are found anteriorly in upper lungs. Extensive pneumomediastinum with trapping of air along bronchovascular sheath (open arrow) is noted. There is also small right pleural effusion (arrowhead). He was recieving intubation on day 24 but ventilation was successfully discontinued 4 days later.